#include <QCoreApplication>
#include <iostream>
using namespace std;
int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
cout << "Vvedite a u b u c"<<endl;
    int ama,b,c;
    cin>>ama;
    cin>>b;
    cin>>c;

 if ((ama>0)&&(b>0)&&(c>0))

 cout<<"true"<<endl;
 else cout<<"false";

    return 0;
}
